<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>旋转</title>
    <style>
        .a{
            width: 100px;
            height: 50px;
            margin-top: 50px;
            background-color: blue;
            text-align: center;
            line-height: 50px;
            color: white;
        }
        .b{
            width: 100px;
            height: 50px;
            margin-top: 30px;
            background-color: yellow;
            transform:rotate(50deg);
            text-align: center;
            line-height: 50px;
        }
    </style>
</head>
<body>
<div class="a">马建蕾</div>
<div class="b">马建蕾</div>
</body>
</html>